Seal for aircraft controls



Dec. 2, 1952 A. c. PATCH ET AL SEAL FOR AIRCRAFT CONTROLS 2SHEETS--SHEET l Filed Sept. 16, 1947 H.N Y s R Tw m T m0,@ o M n V CPG/A m R .5 .UPO MDM RNJ AA L M G Dec. 2, 1952 Filed Sept. 16, 1947 A. C.PATCH ET AL SEAL. FOR AIRCRAFT CONTROLS 2 SHEETS--SHEET 2 /N VEN T'ORSIARTHUR C. PATCH GARLAND R FEED, JR. JACOB C. GOB/N A TTORNEY PatentedDec. 2, 1952 SEAL FORAIRCRAFT CONTROLS Arthur C. Patch, Van Nuys,Garland P. Peed,"Jr.',

Pacific Palisades; and Jacob C. Cubin, Hawthorne, Calif., assignors toNorth American Aviation, Inc.

Application September 16, 1947, Serial No. '774,318k

2 Claims.

This invention relates to a universal mounting embodying a seal for acable' outlet in awall separating high and low pressure areas.

The invention particularly relates to a universal mounting for a sealused in connection with cable outlets in a pressurized cabin.

In the past considerable diiculty has been experienced in satisfactorilysealing cable outlets and particularly where the cable or rod is mountedfor lateral as well as longitudinal movement.

It is therefore an object of this invention to provide a mounting for acable seal which not only permits the seal to perform its functionseffectively but which also permits the rod or cable to move laterally asdesired.

It is a further object of this invention to provide a mounting for aseal which is light in weight, simple in construction, and easy toinstall.

Other objects of the invention will become apparent from the followingdescription and drawings, in which Fig. 1 is a cross-sectional View withparts in elevation showing the mount constructed in accordance with ourinvention;

Fig. 2 is a top plan view with parts in section of a modied mountsimilar to that shown in Fig. 1;

Fig. 3 is a part sectional view illustrating the invention in Figs. 1and 2 With a modified form of sealing means;

Fig. 4 is a modified form of the invention; and

Fig. 5 is a view taken along the line 5-5 of Fig. 4.

Referring to the drawings the wall I of a pressurized cabin is providedwith an opening 2 for receiving a control rod 3, or the like, adaptedfor longitudinal as well as lateral movement. Attached to wall I by anysuitable means (not shown) is a bracket 4 sealed with respect to thewall by gasket 5. Bracket 4 is provided with a pair of ears 6 adapted toreceive pins 'I for rotatably and pivotally mounting sleeve 8 which inturn is -provided with a slot 9 for receiving a pin 1. Sleeve 8 isprovided with a sealing means I0. Such seal is rounded as at I I toprovide line contact with the rod 3. A boot I2, of rubber or othersuitable material, is attached by any desired means to sleeve 8 at oneend and to bracket 4 at the other end to enclose and seal the respectiveparts. In the operation of this embodiment of the invention, rod 3 mayslide longitudinally with respect to the bracket 4 and seal I0. Verticalmovement of the rod is permitted by reason of the pivotal mounting ofsleeve 8 upon pins "I,

Whereas sideward movement ofthe rod Witliirespect to the bracket ispermitted by reastni ofthe longitudinal slot '9 in member 8. y

Referring now to the embodimentoff the invention illustrated in Fig. 2there is provided an additional bracket I3 pivotally attached to bracket4 by pins I4. Sleeve 8 in turn is pivotally attached to bracket I3 bypins I5 arranged at right angles to pins I4 to provide universalmovement.

Referring now to Fig. 3, sleeve B is pivotally attached by pins I5 tosealing means I1 comprising O rings I8 spaced to provide a lubricantseal I9. Member Il is provided with a suitable lubricant fitting 20. Inthis embodiment of the invention the boot I2 extends into engagementwith tting I1. This arrangement of the invention provides an additionalswivel for preventing deformation of the seal.

Referring now to the embodiment of the invention illustrated in Fig. 4,bracket 2 I, suitably attached to wall I, is provided with slots 22 forslidably and pivotally supporting sleeve 23 having pins 24 received inthe slots 22. Although pins 24 are slidably received in slots 22 thereis a certain amount of tolerance between these elements. A tube seal 25of the type described and claimed in application Serial No. 719,233filed Y December 30, 1946, now Patent No. 2,592,949 issuedvApril 15,1952, in the name of Joseph Philipson for Annular Type Cable Seal isattached to sleeve 23. Also attached to sleeve 23 is a boot 26 which inturn is also fastened to wall I to provide a seal between the outside oftube 25 and the wall. A ring 2 is adapted to fasten the outer peripheryof the boot 26, as Well as bracket 2|, to wall I. The inner periphery ofthe boot is fastened to the sleeve 23 by means of ring 28 and fasteningmeans 29.

Although the invention has been described and illustrated in detail, itis to be clearly understood that the same is by way of illustration andexample only and is not to be taken by way of limitation, the spirit andscope of this invention being limited only by the terms of the appendedclaims.

We claim:

1. In an aircraft pressurized. cabin wall having an aperture therein forthe passage therethrough of a control element, such as a rod or thelike, having translatory and angular movement; a non-bindinglow-friction elongated sleeve extending through said aperture forslidably receiving said rod and closely fitted around said rodthroughout the length of said sleeve so as not to entail appreciableloss of pressure therethrough; exible membrane means surrounding saidsleeve and sealingly attached thereto and to said wall for therebysealing said sleeve with respect to said Wall; and a bracket secured tosaid wall, said bracket including two oppositely disposed slots, saidsleeve engaging said bracket in said slots for thereby mounting saidsleeve on said wall with freedom for angular movement relative thereto.

2. In an aircraft pressurized cabin Wall having an aperture therein forpassage therethrough of a control element such as a rod or the likehaving translatory and angular movement; the combination of a rigidtubular sleeve closely fitted over said control element and adapted toguide said control element through said aperture, and of sufficientlength to prevent 110W of fluid therethrough; bracket means secured tosaid Wall, said bracket means being provided with a pair of slots, saidslots being disposed on diametrically opposite sides of said sleeve,said slots having straight parallel sides for engaging said sleeve andallowing lateral movement While restraining longitudinal movementthereof; and a exible diaphragm interconnecting said sleeve and saidwall for retaining different pressures on each side of said Wall.

ARTHUR C. PATCH.

GARLAND P. PEED, JR.

JACOB C. COBIN.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,051,025 Spicer Jan. 21, 19131,063,389 Robbins June 3, 1913 1,529,874 Culbertson Mar. 17, 19251,771,250 Feild July 22, 1930 1,983,368 Hathorn Dec. 4, 1934 2,196,676Johnson et al Apr. 9, 1940 2,349,507 Mac Graham May 23, 1944 2,413,671Wolf et al. Dec. 3l, 1946 2,441,206 Pevney May 11, 1948

